Improvement in cultivators



UNITED STATES BENJAMIN WITTEE, or sIIEnnILLs MOUNT, IOWAa IMPROVEMENT INCULTlVAThORS.

Speciiicaton forming part of Letters Patent Ndjaf); dated I "ebruary ll,1872 `nyin g drawing and to the letters of reference marked thereonmaking a part of this specification.

The nature of my invention consists-in the mode of attachingcultivator-teeth to the standard, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and'use the same, I will-now proceed to describe itscon struction and operation, referring to the annexed drawing, in which-Figure 1 is a perspective view of a cultivator; and Fig. 2 is anenlarged detached view, showing the mode of attaching the teeth to thestandards. l

A represents the center beam of a cultivator with side beamsBTB-connected by bars C C, and adjusted by means of""`rthe bars D D. E Erepresent the standards pivoted to their respective beams,and adjustedat any\angle desired by lrods a,`eyebo1ts b,and nuts hl, as shown. G Grepresent theshovels attached to the lower ends of the standards E E.Those attached to the standards on the center beam A are simply fastenedby bolts e e, while those onthe standards attached to the side beams areprovided on their rear sides with a concave block, f, fitting therounded lower end of the standard, and fastened by means of a metalstrap, h., which passes around the standard, and its ends bent outwardand secured to the ears e z of the block f by boltst' t', which passthrough the ends of the strap, the ears zz, and

the shovel. It will be seen that the lower ends of each standard E areprovided with a round tenon, and that the formation of this tenon leavesa shoulder, a2, at the top thereof, so that when the concaved block f isfitted on the tenon the top of the block rests under the shoulder. Therear part of the tenon is provided with a groove, y, within which theband h lies, so that when the band, block, and shovel are attached tothe standard the shoulder x and groove y will prevent any upwardmovement of the parts on the standard. By this means these shovels maybe turned 4to either side, as desired, to throw the dirt out or in. J Jare the handles, which are braced and adjusted at the ldesired height bymeans of a bent and slotted bar, m, attach ed `to the center beam A. y,Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

The beam E with round tenon at its lower end, shoulder and groove y,`incombination with the concaved block j' with ears e z, the shovel G,strap le, and bolts t' t', all substanA tially as and for the purposesherein set forth.

In testimony that I claim thc foregoing l have hereunto set my hand this20th day of September, 1872.

BENJAMIN WITTER.

Witnesses:

PETER FnEEs, lmiNzA HILLEMUNKER.

